CN2581476Y

CN2581476Y - Road surface structural layer

Info

Publication number: CN2581476Y
Application number: CN 02248950
Authority: CN
Inventors: 李兰英
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-10-28
Filing date: 2002-10-28
Publication date: 2003-10-22
Anticipated expiration: 2012-10-28

Abstract

The utility model discloses a road surface structural layer, which is characterized in that the inside of a road surface structural layer corresponding to the part of wheel tracks of the peak of traffic is provided with a three-dimensional stereoscopic grid. The utility model has the advantages that the materials can be saved, the action for the traffic load resistance is strong, the ability of the rutresistance is high, the mechanics index of the road surface structural layer is improved, various diseases of road surface structures are reduced, and the continuity of the road surface structural layer is reinforced. The utility model can be suitable for roads of various types and various grades.

Description

A kind of road surface structare layer

One) technical field

The utility model relates to the pavement of road field, especially relates to a kind of deck that belongs in each deck of road surface.

Two) background technology

In the highway pavement engineering, owing to reasons such as constructions, each deck of road structure is a uniform relatively deck, that is, and and on the cross section of each deck, it all is identical that material constitutes, for example, the cross section of asphalt concrete pavement all is a bituminous concrete, and the section of graded broken stone layer all is the graded broken stone layer, the cross section of semi-rigid type base all is a semi-rigid type base, and the cross section of steel concrete all is a steel concrete.

And the traffic load on the road surface is normally pockety on the cross section of road surface structare layer, and present regularity, especially on the road surface that divided lane travels, each track all presents two tangible peak wheel paths, two the highest ribbons of the peak wheel path frequency of vehicle tyre effect just in each track, under aforesaid traffic load effect, there is following shortcoming in the even cross-sectional configuration material layer of prior art road structure: 1, cause waste of material: because the effect that road surface structare layer will be resisted traffic load, have to thicken the thickness of whole road surface structare layer, and actual conditions are only to take the weight at wheel path place, the peak of runway to carry, and that the wheel load number of times is born at the wheel path place, non-peak of same runway is less; 2, be prone to rut: even more serious when especially road structure is flexible structure, and after rut occurs at wheel path place, peak, the track rut that divided lane travels, its processing is more bothered; 3, be prone to various cracks: comprise load crack, thermal cracking etc. all under the catalytic action of traffic load, under the inhomogeneous stressed effect at the peak of runway wheel path and wheel path place, non-peak, comparatively fast occur.

Three) utility model content

The utility model purpose is to provide a kind of a kind of road surface structare layer that can overcome above shortcoming.

The utility model purpose is achieved like this: a kind of road surface structare layer is characterized in that: be provided with the 3 D stereo grid in the road surface structare layer of correspondence under the wheel path position, the overall height of being expert at peak.

As a kind of form of the present utility model, described road surface structare layer both can be the pellet layer of no binder punishment; Described road surface structare layer also can add in conjunction with the bed of material for containing.

As another kind of form of the present utility model, described 3 D stereo grid can be the three-dimensional lattice chamber of not contour lattice band formation; The not contour lattice band of this solid lattice chamber can constitute for plate; The not contour lattice band of this solid lattice chamber also can constitute for grid.

As another kind of form of the present utility model, described 3 D stereo grid can constitute for silk thread connects at interval discrete rigid block movement; Described rigid block movement can be the cement concrete piece, and this cement concrete block is arranged at the place, crosspoint of silk thread in length and breadth; Described rigid block movement also can be stone, and this stone is coated by the grid that described silk thread constitutes, and is formed with node between stone.

As another kind of form of the present utility model, following in the described road surface structare layer between the 3 D stereo grid under the wheel path position, car two peak to have silk thread to transversely link, and described silk thread can be the plane grid shape; Laterally 3 D stereo grid can be arranged at interval on the interior 3 D stereo grid of the road surface structare layer under the wheel path position, described driving peak is vertical.

As another kind of form of the present utility model, described 3 D stereo grid can be arranged in the road surface structare layer of the whole runway that comprises the peak wheel path.

Owing to adopt the above-mentioned road surface structare layer that is arranged with the 3 D stereo grid in driving wheel mark band position, make road surface structare layer have following advantage: 1, to save material: when being heavy traffic as if traffic load, can increase too much road structure thickness, because the power of bearing in the road surface structare layer must be delivered to by the interlocking cementation of granular material on the 3 D stereo grid, therefore under the certain situation of road structure thickness, the big low height and the intensity that only design the 3 D stereo grid get final product; 2, the effect of opposing traffic load strengthens greatly, rutting resistance improves greatly: because rut is created in the peak wheel path of runway, wheel path position, overall height peak is arranged with the 3 D stereo grid and the utility model is expert at, thereby improved the anti-shearing deformability of ground surface material under the wheel path position, peak and stoped the lateral displacement of granular material, thereby rut can be eradicated; 3, improved the mechanical index of road surface structare layer, the various diseases of road structure have been alleviated: because the setting of 3 D stereo grid, make bending tensile strength, shear strength, tensile strength, the compressive strength of road surface structare layer all be improved, thereby make various cracks can be suppressed generation; 4, make and do not contain the granular material layer that adds binder and become a kind of novel draining basic unit, solved the present only cement punishment rubble and the easy obstruction of two kinds of draining basic units of bituminisation rubble, the drawback of strength deficiency; 5, strengthen the continuity of road surface structare layer: when stereoscopic grid is arranged between road surface structare layer and the layer, can strengthen the continuity of road structure interlayer, thereby the road structure holistic resistant behavior is strengthened, and can further thus attenuate road surface thickness.

Below in conjunction with the drawings and specific embodiments a kind of road surface structare layer of the utility model is described further.

Four) description of drawings

Fig. 1 carries road surface structare layer viewgraph of cross-section under the effect for prior art at axle;

Fig. 2 is the viewgraph of cross-section of the utility model embodiment 1;

Fig. 3 is the A-A schematic cross-section of Fig. 2;

Fig. 4 is a kind of form perspective view that is used for the not contour lattice chamber type 3 D stereo grid of present embodiment 1;

Fig. 5 is the B-B schematic cross-section of Fig. 4;

Fig. 6 is the another kind of form schematic cross-section of not contour lattice chamber type 3 D stereo grid;

Fig. 7 is the another kind of form schematic cross-section of not contour lattice chamber type 3 D stereo grid;

Fig. 8 is the another kind of form schematic cross-section of not contour lattice chamber type 3 D stereo grid;

Fig. 9 is a kind of form perspective view that can be used for the connection rigidity discrete area build 3 D stereo grid of present embodiment 1;

Figure 10 is for connecting the another kind of form stereochemical structure decomposing schematic representation of rigidity discrete area build 3 D stereo grid;

Figure 11 is the C-C schematic cross-section of Figure 10;

Figure 12 is the viewgraph of cross-section of the utility model embodiment 2;

Figure 13 is the D-D schematic cross-section of Figure 12;

Figure 14 is the viewgraph of cross-section of the utility model embodiment 3;

Figure 15 is the E-E schematic cross-section of Figure 14.

Five) specific embodiment

As Fig. 2, shown in Figure 3, the utility model embodiment 1 is provided with 3 D stereo grid 5 in the top course 2 under the wheel path of the peak of axle load 1, the not contour lattice chamber type 3 D stereo grid that this 3 D stereo grid 5 is welded into for steel plate, during construction, 3 D stereo grid 5 can be before laying surface layer, be fixed on the end face of basic unit 3 earlier, re-lay top course 2, the top course 2 of present embodiment 1 is for containing the granular material layer that adds binder, the described binder that adds is a pitch, described granular material layer is a graded broken stone, and the top course 2 of formation is a bituminous concrete.

As Fig. 4, shown in Figure 5, a kind of form for not contour lattice chamber type 3 D stereo grid, this 3 D stereo grid is welded into the three-dimensional lattice chamber with a plurality of lattice chamber 6 by horizontal steel grating 7 and vertical steel grating 8, it is 1 millimeter that horizontal steel grating 7 and vertical steel grating 8 are thickness t, the antirust processing of process also is coated with plastic coating, and laterally steel grating 7 and vertical steel grating 8 are not contour type, each the transverse plate 7 own height h that promptly constitutes three-dimensional lattice chamber are identical, but laterally steel grating 7 is different with adjacent horizontal steel grating 7 height h, and vertical steel grating 8 also is not contour between the different in the horizontal lattice chamber; Between lattice plate dative plate highly the difference, each horizontal lattice plate 7 or vertical lattice plate 8 height h own can also become not contour type (to play the increase adhesion in each little lattice chamber 6, reduce the material usage effect), as shown in Figure 6, each horizontal lattice plate 7 or vertical lattice plate 8 can also be replaced by grid, as shown in Figure 7, laterally lattice plate 7 and vertical lattice plate 8 are steel wire grid; And the limit portion of three-dimensional lattice chamber can also connect planar grille 9, and to be adapted to stressed transition gradually, as shown in Figure 8, planar grille 9 is the steel wire plane grid, is solder-connected on the not contour lattice chamber type 3 D stereo grid 5.

As shown in Figure 9, for can be used for the another kind of 3 D stereo grid 5 of present embodiment 1, this 3 D stereo grid 5 is for connecting rigidity discrete area build, it connects rigidity cement concrete blocks 10 by glass fiber bunch in length and breadth 11 and constitutes, wherein rigidity cement concrete block 10 is built in the node place of glass fiber bunch 11 in length and breadth, rigidity cement concrete block 10 is the small crushed stone concrete, the diameter of the block 10 after the moulding is 4 centimetres, certainly, rigid block movement 10 also can be arranged in the checkerwork cell of a plane grid.

As Figure 10, shown in Figure 11, another form that connects rigidity discrete area build 3 D stereo grid is made of silk thread 11 and rigid block movement 10, wherein silk thread 11 is latticed, grid is a two-layer glass fiber grid grid up and down, rigid block movement 10 is a stone, the average diameter of stone 10 is 3 centimetres, stone 10 interval Discrete Distribution are on layer of glass fiber grid grid 11, another layer glass fiber grid grid 11 covers on the stone 10 of Discrete Distribution, and the two-layer glass fiber grid grid 11 between stone 10 and stone 10 is equipped with knot 12, this knot 12 passes two-layer glass fiber grid grid 11 by nylon wire and knotting firmly forms, in limit portion two-layer glass fiber grid grid 11 is sewed up connection, form another form that silk thread connects rigidity discrete area build 3 D stereo grid like this.

Also all can colligation or has been welded to connect plane grid in the edge of above 3 D stereo grid, and above 3 D stereo grid all can be used for each embodiment.

As Figure 12, shown in Figure 13, the utility model embodiment 2 is substantially the same manner as Example 1, difference is that 3 D stereo grid 5 is laid in the sub-surface 3 of no binder punishment pellet, and two 3 D stereo grids 5 under the wheel path of peak are coupled together by plane grid 9 in the horizontal, plane grid 9 is a steel wire grid, plane grid 9 is welded between two 3 D stereo grids 5, the sub-surface 3 of no binder punishment pellet is a macadam, 3 D stereo grid 5 wherein and plane grid 9 are all through zinc-plated antirust and plastic-coated processing, the sub-surface 3 of present embodiment becomes a kind of novel draining basic unit, the pitch that has overcome prior art bituminisation crushed stone drainage foundation is easily aging, the susceptible to plugging defective of hole of cement punishment rubble, the 3 D stereo grid 5 of present embodiment can certainly become latticed for connected rigidity cement concrete block by the glass fiber bunch.

As Figure 14, shown in Figure 15, the utility model embodiment 3 is substantially the same manner as Example 1, difference is that 3 D stereo grid 5 is laid between top course 2 and the sub-surface 3, and be arranged at intervals with that horizontal 3 D stereo grid 5 is common to constitute sash shapes, this 3 D stereo grid 5 becomes latticed for connected rigidity cement concrete block by the glass fiber bunch, during construction, can finish man-hours at sub-surface 3,3 D stereo grid 5 is pressed in sub-surface 3 end faces, the paving concrete pavement surface layer 2 again, 3 D stereo grid 5 not only plays and connects surface layer 2 and basic unit's 3 all-in-one-piece effects like this, and makes stressed more rationally, and rutting resistance strengthens.

More than the laying form of each embodiment 3 D stereo grid all can be used for not having the deck of binder punishment pellet, also all can be used for containing the deck that adds binder; And driving described in the utility model peak wheel path has comprised the track of various driving vehicles.

More than each embodiment also can completely be taped against in the road surface structare layer of the whole runway that comprises driving peak wheel path with the 3 D stereo grid.

Claims

1, a kind of road surface structare layer is characterized in that: be provided with the 3 D stereo grid in this road surface structare layer of correspondence under the wheel path position, the overall height of being expert at peak.

2, road surface structare layer according to claim 1 is characterized in that: the described road surface structare layer that is provided with the 3 D stereo grid is no binder punishment pellet layer.

3, road surface structare layer according to claim 1 is characterized in that: the described road surface structare layer that is provided with the 3 D stereo grid contains and adds binder.

4, road surface structare layer according to claim 1 is characterized in that: the three-dimensional lattice chamber that described 3 D stereo grid constitutes for not contour lattice band.

5, road surface structare layer according to claim 4 is characterized in that: the not contour lattice band of described three-dimensional lattice chamber is that plate constitutes.

6, road surface structare layer according to claim 4 is characterized in that: the not contour lattice band of described three-dimensional lattice chamber is that grid constitutes.

7, road surface structare layer according to claim 1 is characterized in that: described 3 D stereo grid is that silk thread connects at interval discrete rigid block movement formation.

8, road surface structare layer according to claim 7 is characterized in that: described rigid block movement is the coagulating cement soil block, and this cement concrete block is arranged at the place, crosspoint of silk thread in length and breadth.

9, road surface structare layer according to claim 7 is characterized in that: described rigid block movement is a stone, and this stone is coated by the grid that described silk thread constitutes, and is formed with node between stone.

10, according to the described arbitrary road surface structare layer of claim 1 to 9, it is characterized in that: have silk thread to transversely link between the 3 D stereo grid in the road surface structare layer under the wheel path position, described driving peak.

11, according to the described arbitrary road surface structare layer of claim 1 to 9, it is characterized in that: the 3 D stereo grid is separated with horizontal 3 D stereo grid between vertically going up in the road surface structare layer under the wheel path position, described driving peak.

12, according to the described arbitrary road surface structare layer of claim 1 to 9, it is characterized in that: also be provided with the 3 D stereo grid in the road surface structare layer of described non-driving peak wheel path.